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The NMR Study of the Latex Extracted from Brosimum Parinarioides

Eduardo Miguez and Maria Tavares
Affiliation: 
Instituto de Macromoleculas Professora Eloisa Mano – UFRJ Centro de Tecnologia, Bloco J – Cidade. Universitaria, Rio de Janeiro, RJ Brasil, CEP 21945-970, CP 68525; mibt@ima.ufrj.br
DOI: 
https://doi.org/10.23939/chcht05.02.209
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Keywords:

Abstract: 
In this work we used high-resolution nuclear magnetic resonance (NMR) to identify the major compounds present in the Natural latex named Leite de Amapá, which is extracted from Brosimum paranarioides tree. To do it 1D 1H and 13C NMR spectra and DEPT techniques were employed. The analysis of spectral data showed that this latex is principally constituted by cis-isoprene, saturated and unsaturated fatty acids and triacylglycerides esters.
References: 

[1] Nascimento A.: MSc thesis, Universidade do Amazonas, Manaus, Amazonas, Brasil 1999.

[2] Nascimento A., Tavares M. and Nascimento R.: Int. J. Polym. Mat., 2007, 56, 31.
https://doi.org/10.1080/00914030600873485

[3] Nascimento A. and Tavares M.: Int. J. Polym. Mat., 2007, 56, 115.
https://doi.org/10.1080/00914030600873485

[4] Sarwata S. et al.: Pharmacol. Res., 2001, 43, 132.

[5] Harris R.: The Fifth Int. Conf. on Application of Magnetic Resonance in Food Science, Aveiro, Portugal 2000, I, 1.

[6] Gil A.:ibid, 43.

[7] Sacchi R.: ibid, 20.

[8] Tang H. and Hill B.: Biomacromolecules, 2003, 4, 1269.
https://doi.org/10.1021/bm0340772

[9] Silva E., Bathista A., Tavares M. et al.: J. Food Sci.Agric., 2005, 85, 2269.
https://doi.org/10.1002/jsfa.2232

[10] Rodrigues T., Tavares M., Preto M. et al.: Int. J. Polym. Mat., 2008, 57, 1119.
https://doi.org/10.1080/00914030802428716

[11] Silva E., Tavares M., Miguez E. and Nogueira J.: ibid, 594.

[12] Conte P., Spaccini P. and Piccolo A.: Prog. Nuc. Mag. Res. Spec., 2004, 44, 215.
https://doi.org/10.1016/j.pnmrs.2004.02.002

[13] Costa P., Tavares M., Silva E. et al.: Int. J. Polym. Mat., 2007, 56, 1135.
https://doi.org/10.1080/00914030701283220

[14] Silva E., Tavares M. and Nogueira J.: ibid, 1119.

[15] Silva E., Tavares M. and Nogueira J.: J. Nano Res., 2009, 4, 117.
https://doi.org/10.4028/www.scientific.net/JNanoR.4.117